WO2018074708A1 - Procédé et appareil de mesure d'interférence inter-ru permettant d'effectuer une communication en duplex par répartition spatiale - Google Patents

Procédé et appareil de mesure d'interférence inter-ru permettant d'effectuer une communication en duplex par répartition spatiale Download PDF

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Publication number
WO2018074708A1
WO2018074708A1 PCT/KR2017/007788 KR2017007788W WO2018074708A1 WO 2018074708 A1 WO2018074708 A1 WO 2018074708A1 KR 2017007788 W KR2017007788 W KR 2017007788W WO 2018074708 A1 WO2018074708 A1 WO 2018074708A1
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WIPO (PCT)
Prior art keywords
interference
information
inter
base station
terminal
Prior art date
Application number
PCT/KR2017/007788
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English (en)
Korean (ko)
Inventor
변일무
강지원
김희진
조희정
한진백
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US16/341,235 priority Critical patent/US10742334B2/en
Publication of WO2018074708A1 publication Critical patent/WO2018074708A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/023—Selective call receivers with message or information receiving capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the terminal may transmit the first interference information and the second interference information to the base station. Assuming that the UE has N RUs, the UE needs to transmit interference information for a total of N (N-1) / 2 RU pairs, so that many bits are required. If p bits are required for each interference information, a total of N (N-1) p bits are required.
  • 3GPP LTE / LTE-A is mainly described, but the technical idea of the present invention is not limited thereto.
  • RB means a logical path provided by a first layer (PHY layer) and a second layer (MAC layer, RLC layer, PDCP layer) for data transmission between a UE and a network.
  • the setting of the RB means a process of defining characteristics of a radio protocol layer and a channel to provide a specific service, and setting each specific parameter and an operation method.
  • RB can be divided into SRB (Signaling RB) and DRB (Data RB).
  • the SRB is used as a path for transmitting RRC messages in the control plane
  • the DRB is used as a path for transmitting user data in the user plane.
  • Side link discovery is defined as a procedure used by a UE to support side-link discovery to discover other UEs nearby using an E-UTRA direct radio signal via PC5. Side link discovery is supported both when the UE is serviced by the E-UTRAN and when the UE is out of the E-UTRA coverage. Outside the E-UTRA range, only ProSe-capable public safety UEs can perform side-link discovery. For public safety side-link discovery, the allowed frequencies are preconfigured in the UE and are also used when the UE is out of range of E-UTRA at that frequency. The pre-configured frequency is the same frequency as the public safety ProSe carrier.
  • V2V includes direct exchange of V2V-related application information between different UEs, and / or due to the limited direct communication range of V2V, V2V provides V2V-related application information between different UEs to an infrastructure supporting V2X service For example, an RSU, an application server, etc.).
  • V2V provides V2V-related application information between different UEs to an infrastructure supporting V2X service For example, an RSU, an application server, etc.).
  • FIG. 6 shows an example of applying SDD in a vehicle to which a distributed antenna is applied.
  • Link 1 and Link 2 are communication links connected to different apparatuses (terminals or base stations).
  • the amount of Tx resources and Rx resources can be changed according to the situation of each communication link, and the Tx and Rx points can be changed.
  • a radio unit RU is an antenna module in which a plurality of antennas are gathered, and the terminal has four RU's dispersed and held. Of the four RUs, two RUs were used to form link 1, and the remaining two were used to form link 2.
  • the overtaking operation is planned with a certain granularity and is agreed by the surrounding vehicle.
  • the accuracy of the overtaking operation depends on the granularity of the locus (i.e., the size of the individual grid elements).
  • the traffic scenario can provide real-time video data to the rear vehicle as needed in a complex driving situation such as automatic overtaking operation.
  • a typical value for a commercial video encoder is 100 ms. Therefore, it is assumed that video is transmitted in a raw format to prevent encoding and decoding delays and to be used in real time for driving purposes.
  • the camera capability should be sufficient for feature extraction for future autonomous navigation tasks. Assuming a gray-scale video with a resolution of 1280 x 720 pixels and a refresh of 30 fps, the data rate is 220 Mbps.
  • Scenario 3-1 (Braking): To compensate for differences in vehicle loads, road characteristics, and braking systems, it is assumed that each vehicle involved in the platoon has advanced brake control.
  • the brake controller is incomplete such that the defect is modeled by the additional Gaussian noise of the given dispersion.
  • the probability of an accident is about 10-6 when the brake controller dispersion is 10-4, the platoon vehicle moves at a speed of 23m / s, the distance between vehicles is 4.5m, and the packet is successfully transmitted on the first transmission.
  • a very low packet error rate e.g., less than 10 < -6 >
  • the present invention aims to provide an interference measurement procedure and a signaling related thereto for a terminal having a plurality of RUs (Radio Units) to receive a signal in a specific RU while transmitting signals in another RU.
  • RUs Radio Units
  • the present invention aims to provide an interference measurement procedure and a signaling related thereto for a terminal having a plurality of RUs (Radio Units) to receive a signal in a specific RU while transmitting signals in another RU.
  • RUs Radio Units
  • a reference signal (RS 0, RS 1) of an RU transmitted by a base station and a reference signal (RS 2) of an RU transmitted by the terminal allocate resources orthogonal to each other so that the terminal can distinguish the received signal from the base station and the magnetic interference signal .
  • the terminal receiving the RU information of the terminal to receive the base station RS in the n-th transmission does not need to measure the magnetic interference in all of the RUs indicated by the base station, but when updating the channel information to the base station, It is necessary to update the channel information with respect to the RU.
  • the base station can request the terminal to measure the signal transmitted by the RU1 and the RU2 to update the self-interference information.
  • the UE may measure the interference of the RU1 only in the RU2 and not measure the RU3.
  • the magnitude of the magnetic interference of the RU3 is set to the largest value and transmitted to the base station.
  • the base station can recognize that RU1 and RU3 can not operate in FDR format.
  • the UE determines the inter-RU interference for performing the spatial division duplex communication between the RUs Measure periodically. If the interference magnitude indicated by the second interference information is less than or equal to the second threshold value, the terminal does not periodically measure the inter-RU interference for performing the RU space division duplex communication.
  • channel estimation can be performed while simultaneously considering the intra-terminal intra-RU magnetic interference and the signal transmitted from the base station.
  • inter-RU interference and inter-RU interference will be described in combination.
  • a baseband processor is generally manufactured by a modem chip manufacturer, and an RU is manufactured by a terminal or a vehicle maker.
  • the RU does not need to transmit information to the baseband processor separately.
  • the terminal has a plurality of RUs and it is possible for each RU to send and receive signals only in a specific direction, the RU can transmit its own characteristics to the baseband processor, thereby enabling communication to be performed more efficiently.
  • the terminal may broadcast or multicast different information in different directions in each RU.
  • Setting the interface between the RU and the baseband processor has the advantage of modularizing the RU.
  • the baseband processor is notified of the beam width information of the main lobe, the beam direction of the side lobes, and the beam width information in the form of the number of the vertical direction antennas, the number of the horizontal direction antennas,
  • An arbitrary vehicle may have only one RU without having a plurality of RUs. Therefore, a single RU can support up to N an antenna ports.
  • the RU informs the baseband processor of the location information of the RU through the Br interface.
  • the RU may send the RU height information to the baseband processor.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de mesure d'interférence inter-RU servant à effectuer une communication en duplex par répartition spatiale dans un système de communication sans fil. Spécifiquement, un terminal acquiert des premières informations d'interférence indiquant l'intensité d'interférence inter-RU après l'annulation d'interférence analogique, et des secondes informations d'interférence indiquant l'intensité d'interférence inter-RU avant l'annulation d'interférence analogique. Le terminal détermine si une communication en duplex par répartition spatiale peut être effectuée entre RU, en comparant la force d'interférence indiquée par les premières informations d'interférence avec un premier seuil. Le terminal détermine si une interférence inter-RU doit être mesurée périodiquement, en comparant la force d'interférence indiquée par les secondes informations d'interférence avec un second seuil.
PCT/KR2017/007788 2016-10-23 2017-07-19 Procédé et appareil de mesure d'interférence inter-ru permettant d'effectuer une communication en duplex par répartition spatiale WO2018074708A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/341,235 US10742334B2 (en) 2016-10-23 2017-07-19 Method and apparatus for measuring inter-RU interference in order to perform space division duplex communication

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201662411682P 2016-10-23 2016-10-23
US201662411683P 2016-10-23 2016-10-23
US62/411,683 2016-10-23
US62/411,682 2016-10-23
US201662439052P 2016-12-25 2016-12-25
US62/439,052 2016-12-25

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CN112840682A (zh) * 2018-08-29 2021-05-25 采埃孚商用车系统汉诺威有限公司 V2x通信单元和具有这种v2x通信单元的自有车辆
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CN112840682B (zh) * 2018-08-29 2024-07-02 采埃孚商用车系统欧洲有限公司 V2x通信单元和具有这种v2x通信单元的自有车辆
CN109703008A (zh) * 2019-01-03 2019-05-03 山东中颖智超数据科技有限公司 基于大数据人工智能分析的智能增材制造方法及装置
CN109703008B (zh) * 2019-01-03 2021-08-27 山东中颖智超数据科技有限公司 基于大数据人工智能分析的智能增材制造方法及装置

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